1 /**********************************************************************
3 * Copyright (c) 2005-2006 Cryptocom LTD *
4 * This file is distributed under the same license as OpenSSL *
6 * Implementation of control commands for GOST engine *
7 * OpenSSL 0.9.9 libraries required *
8 **********************************************************************/
11 #include <openssl/engine.h>
12 #include <openssl/buffer.h>
15 static char *gost_params
[GOST_PARAM_MAX
+1]={NULL
};
16 static const char *gost_envnames
[]={"CRYPT_PARAMS"};
17 const ENGINE_CMD_DEFN gost_cmds
[]=
21 "Type of random number generator to use",
22 ENGINE_CMD_FLAG_STRING
24 { GOST_CTRL_RNG_PARAMS,
26 "Parameter for random number generator",
27 ENGINE_CMD_FLAG_STRING
29 */ { GOST_CTRL_CRYPT_PARAMS
,
31 "OID of default GOST 28147-89 parameters",
32 ENGINE_CMD_FLAG_STRING
37 void gost_param_free()
40 for (i
=0;i
<=GOST_PARAM_MAX
;i
++)
41 if (gost_params
[i
]!=NULL
)
43 OPENSSL_free(gost_params
[i
]);
49 int gost_control_func(ENGINE
*e
,int cmd
,long i
, void *p
, void (*f
)(void))
51 int param
= cmd
-ENGINE_CMD_BASE
;
53 if (param
<0 || param
>GOST_PARAM_MAX
) return -1;
54 ret
=gost_set_default_param(param
,p
);
58 const char *get_gost_engine_param(int param
)
61 if (param
<0 || param
>GOST_PARAM_MAX
) return NULL
;
62 if (gost_params
[param
]!=NULL
)
64 return gost_params
[param
];
66 tmp
= getenv(gost_envnames
[param
]);
69 if (gost_params
[param
]) OPENSSL_free(gost_params
[param
]);
70 gost_params
[param
] = BUF_strdup(tmp
);
71 return gost_params
[param
];
76 int gost_set_default_param(int param
, const char *value
)
79 if (param
<0 || param
>GOST_PARAM_MAX
) return 0;
80 tmp
= getenv(gost_envnames
[param
]);
81 /* if there is value in the environment, use it, else -passed string * */
83 if (gost_params
[param
]) OPENSSL_free(gost_params
[param
]);
84 gost_params
[param
] = BUF_strdup(tmp
);